Automotive Stainless Steel Spark Plug Tester

describe Quick and easy test to help check the ignition system condition of each cylinder It is very suitable for finding bad cables, dirty spark plug connections, connections or defective points

Test method: Switch off the engine and remove the spark plug coil Connect the black end of the tester to the spark plug Connect the metal end of the tester to the spark plug coil Start the engine If the ignition wire is complete, the indicator lamp flashes

Specifications: Material: stainless steel,plastic color:as the picture Size: 26cm long

Package includes: 1 * Spark plug tester